Displaying 20 results from an estimated 10000 matches similar to: "r syntax"
2012 Apr 12
3
Reading SPSS: underlying numerical codes
Dear people,
I have got a question concerning the underlying numerical codes when
reading an SPSS file into R.
I used the package foreign and when I look at a variable I get the verbal
codes.
I would like to know how it is possible to get the underlying numerical
codes as output, which are the same as in my SPSS file.
Thank you very much in advance for your help!
Marion
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2009 Jun 23
2
Problem with ifelse statement
Hi R-helpers,
I am trying to use this ifelse statement to recode a variable:
> data$SOCIAL_STATUS<-ifelse(data$SOCIAL_STATUS=="B" & data$MALE>4, "C", "B")
(i.e., if social status is B and there are more than 4 males, then
recode social status to C; otherwise, leave it B)
But, it's not working. See the below R output. Notice that there were
71
2013 Nov 04
2
Fwd: recodificar variables
Buenas noches, mi pregunta es tal vez sencilla.
tengo esta libreria y estos datos
library(nlme)
data(MathAchieve) Infoest = MathAchieve
en esta base quiero contar la cantidad de casos en la que la columna Sex,
toma el valor Female, como puedo hacerle el filtro para ver solo los
Females.
y como puedo dentro del mismo conjunto de datos agregar la variable
numerica que me cuente 1 si es Female y 0
2017 Jun 23
4
duplicated factor labels.
Hmm, the danger in this is that duplicated factor levels _used_ to be allowed (i.e. multiple codes with the same level). Disallowing it is what broke read.spss() on some files, because SPSS's concept of value labels is not 1-to-1 with factors.
Reallowing it with different semantics could be premature. I mean, if we hadn't had the "forbidden" step, read.spss() could have changed
2013 Jan 06
4
random effects model
Hi A.K
Regarding my question on comparing normal/ obese/overweight with blood
pressure change, I did finally as per the first suggestion of stacking the
data and creating a normal category . This only gives me a obese not obese
14, but when I did with the wide format hoping to get a
obese14,normal14,overweight 14 Vs hibp 21, i could not complete any of the
models.
This time I classified obese=1
2017 Jun 16
3
duplicated factor labels.
To extwnd on Martin 's explanation :
In factor(), levels are the unique input values and labels the unique
output values. So the function levels() actually displays the labels.
Cheers
Joris
On 15 Jun 2017 17:15, "Martin Maechler" <maechler at stat.math.ethz.ch> wrote:
>>>>> Paul Johnson <pauljohn32 at gmail.com>
>>>>> on Wed, 14 Jun
2012 Sep 05
2
Recoding categorical gender variable into numeric factors
I currently have a data set in which gender is inputed as "Male" and "Female"
, and I'm trying to convert this into "1" and "0".
I found a website which reccomended using two commands:
data$scode[data$sex=="M"] <- "1"
data$scode[data$sex=="F"] <- "2"
to convert to numbers, and:
data$scode <-
2013 May 13
2
reduce three columns to one with the colnames
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2001 Sep 11
1
String variables in GLM
Hello!
I have a dataset with variables in string format (ages class and sex) which
I want to recode as numerical variables. How can I accomplish this? Is
there any way to do that automatically? Could someone help me?
Thanks in advance,
Marcos
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2010 Oct 29
2
wilcox.test; data type conversion?
I'm working on a quick tutorial for my students, and was planning on
using Mann-Whitney U as one of the tests.
I have the following (fake) data
grade <- c("MVG", "VG", "VG", "G", "MVG", "G", "VG", "G", "VG")
sex <- c( "male", "male", "female", "male",
2010 Mar 26
4
Creating a vector of categories
Hi,
I have a column in a data frame looking something like:
$sex $language $count
male english 0
male english 0
female english 32
male spanish 154
female english 11
female norweigan 7
and so on.
What I want to do is to order these in to categories, for instance one
category where count>=0 & count<10 and so on..
I want my data to turn out looking something like:
male
2010 May 01
2
Average Login based on date
Hi All,
I have the data like this :
>sample <- read.csv(file="sample.csv",sep=",",header=TRUE)
> sample
stdate Domain sex age Login
1 01/11/09 xxx FeMale 25 2
2 01/11/09 xxx FeMale 35 4
3 01/11/09 xxx Male 18 30
4 01/11/09 xxx Male 31 3
5 02/11/09 xxx Male 32 11
6 02/11/09 xxx Male 31 1
7 02/11/09
2008 Feb 12
3
help with bwplot
Dear list,
I have following data set, which I want to plot the "Scale" variable on the
x-axis and "Mean"´on the y-axis for each Ageclass and for each sex. The Mean
value of each Ageclass for each sex would be connected by a line. Totally,
there should be 6 lines, from which three present the Mean values of each
Ageclass for respective sex. Are there any easy ways to do
2005 Dec 24
2
grouping data
Hello R-users/experts,
I am new to R-
I have a simple question:
Let say I have a data set as follows
temp:[file attached]
the data structure is a follows:
sex age
female 28
female 53
female 53
female 36
male 42
male 29
male 43
male 36
male 41
Here we are grouping all male value into male and all female value in to
female
2010 May 07
2
extract required data from already read data
Hi all,
I have data like this:
>sample <- read.csv(file="sample.csv",sep=",",header=TRUE)
> sample
stdate Domain sex age Login
1 01/11/09 xxx FeMale 25 2
2 01/11/09 xxx FeMale 35 4
3 01/11/09 xxx Male 18 30
4 01/11/09 xxx Male 31 3
5 02/11/09 xxx Male 32 11
6 02/11/09 xxx Male 31 1
7 02/11/09
2008 Nov 17
5
how to calculate another vector based on the data from a combination of two factors
Hi,
I have a data set similar to the following
State Gender Quantity
TX Male 1
NY Female 2
TX Male 3
NY Female 4
I need to calculate cumulative sum of the quantity by State and Gender. The
expected output is
State Gender Quantity CumQuantity
TX Male 1 1
TX Male 3 4
NY Female 2 2
NY Female 4 6
I highly appreciate if someone can give me some hints on solving that in R.
Hao
--
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2009 Mar 17
2
converting null to some values
Hi,
I have newbie question. Suppose I have the following data:
temp <- data.frame(type1 = c("male", "female", "male", "female", "female"),
type2 = c("low", "med", "high", "low", "med"), a = c(1,2,4, NA, 3), b =
.... [TRUNCATED]
temp
type1 type2 a b c
1 male low 1 5 0
2 female
2013 Apr 18
6
count each answer category in each column
Hey,
Is it possible that R can calculate each options under each column and
return a summary table?
Suppose I have a table like this:
Gender Age Rate
Female 0-10 Good
Male 0-10 Good
Female 11-20 Bad
Male 11-20 Bad
Male >20 N/A
I want to have a summary table including the information that how many
answers in each category, sth like this:
X
2005 Jun 25
1
Confidence interval bars on Lattice barchart with groups
I am trying to add confidence (error) bars to lattice barcharts (and
dotplots, and xyplots). I found this helpful message from Deepayan
Sarkar and based teh code below on it:
http://finzi.psych.upenn.edu/R/Rhelp02a/archive/50299.html
However, I can't get it to work with groups, as illustrated. I am sure I
am missing something elementary, but I am unsure what.
Using R 2.1.1 on various